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Design >> Mixed-Signal Design >> Decimation filter for multi-bit delta sigma
https://designers-guide.org/forum/YaBB.pl?num=1378502056

Message started by Chuck on Sep 6^th, 2013, 2:14pm

Title: Decimation filter for multi-bit delta sigma
Post by Chuck on Sep 6^th, 2013, 2:14pm

Hi,

I appreciate if someone helps me figure out how I can design a decimation filter for a multi-bit delta sigma ADC. I could find some stuff but all of them were for 1-bit delta sigma.

Title: Re: Decimation filter for multi-bit delta sigma
Post by nrk1 on Oct 2^nd, 2013, 8:41pm

Not very different from single bit delta-sigma. See e.g.
Shankar Parameswaran and Nagendra Krishnapura, "A 100µW Decimator for a 16 Bit 24kHz Bandwidth Audio ΔΣ Modulator," 2010 International Symposium on Circuits and Systems (ISCAS), Paris, France, 31 May-2 Jun. 2010.